Sound reproducing apparatus for



May 21, G SALCEDO Re.

SOUND REPRODUCING APPARATUS FOR ADVERTISING PURPOSES Original Filed Dec. 15, 1929 7emz'nnnd q. Jalcedo INVENTOR A TTOR AVE V Reisoued May 21, 1935 UNITED STATE sormn amonucmo APPARATUS roa mvmmsmo roarosss Ferdinand G. Saloedo, Hollywood, Advertising to Consolidated Angeles, Calif.

Calii., a-ignor Corp., Ltd, has

Original No. 1,878,790, dated August 23, 1932,

serum No. 413,911,

December 13, 1929.

plication ior reissue May 21, 1934, Serial No.

10 Claims.

This invention relates to a sound reproducing pparatus for advertising purposes and more rticularly to a novel arrangement 01 one or more microphones and loud speakers in combina- 5 tion with the combined sound and motion picture projection apparatus employed in theaters. It is an object of the invention to provide a more ei- Icctive means for attracting the attention of people the theater and thereby influence them to attend the theater, thus rendering it unnecessary ior the management to depend upon the ordinary pictures posted outside of the building to call the attention of the public to the periormance being conducted therein. 7

Another object of the invention is to so construct the apparatus that it may be controlled, as for example, by the attendant at the ticket oflice o: the theater, so as to transmit the amplified sound waves to pedestrians on the street at such periods in the production of a play as constitutes the culmination oi. intense human interest or some conspicuous psychological moment in the action of the play, thereby attracting the attention of those passing by the theater and exerting greater influence on them to visit the theater than that now obtained by the use of ordinary poster pictures. Another object of the invention is to provide, in an apparatus 01' the character above described, means whereby, not only the solmd waves reproduced incident to the projection of the motion picture may be transmitted and amplified exteriorly oi the theater, but also the applause, laughter, and other voclierations oi the audience occurring within the theater, so that -by,.

being attracted either by the sound waves from the reproduction apparatus or the tumult raised by the audience, will be influenced to gain entrance to the theater and witness the scenes projected on. the screen.

Still another object of the invention is to provide for combined sound and motion picture theaters means for transmitting, from the interior of the theater parts otthe sound program arising from the orchestra in the orchestra pit and to deliver the sounds thus transmitted to one or more loud speakers located adjacent to thesignorsignsinirontotthetheatersothat the attention 01' people by will be attracted to such signs and they will'thus be led to read the name oi the theater and also any other information which may be conveyed adjacent the vide an apparatus whereby the motion picture;

(CL I'm-100.1)

houses or theaters constituting a chain, may I have announcements made in diilerent ones of the theaters as to the programs being carried out in the other theaters, during inte and at the termination oi periods of exhibition. Yet still another object 0! the invention is to provide a sound reproducing means which will, along with the other objects and advantages which have been mentioned, be capable of transmitting to the exterior or the theater portions of spoken drama recitals, lectures and the like from the stage thereof, in order that these may be heard by persons in front of the theater and result in such persons becoming interested in the melodrama being enacted.

The figure oi the accompanying drawing is a diagrammatic view illustrating'in a general way, the interior arrangement of atheater or motion picture.,house--as. w'eillarrangement of parts of the apparatus,-;.which are located exterior-1y oi the theater or motion picture house.

In the drawing the stage is indicated by the numeral l, the ticket omce by the numeral 2, and the numeral 3 indicates, for example, signs which are arranged front of the theater and bear the name thereof. The numeral 4 indicates the motion picture projection room in which the combined sound and motion picture projection apparatus, and the operator for controlling the same, is contained, and the screen, upon which the pictures projected from the projection apparatus by the projectionist, is indicated by the numeral 5. In addition to the usual amplifiers or loud speakers 8, which are customarily arranged in rear of the screen 5, an amplifier unit I comprising a part oi! my invention is provided.

In carrying out the invention, loud speaker units 8 are located in proximity to the signs 3 or exteriorly oi the theaterand are in circuit with the sound reproducer located within the projection room 4 of the theater. Speakers 8 are also connected to the sound reproducer but in another circuit. The latter circuit may be appropriately termed a parallel circuit. The former circuit is controlled by a switch 9 of any appropriate type conveniently located, such as adjacent the ticket seller in the ticket office 2, whereby the sounds ormovietones from the sound and picture reproduction apparatus may be transmitted to points exteriorly oi the theater.

As previously stated the invention also contemplates an arrangement whereby the applause,

cheering or laughter oi the audience may be transmitted to points exteriorly o! the theater to attract the attention or, and interest paaers-by. Thisisaccomplishedbytheuseot ll preferably arranged at points about the orchestra fioor ot the theater, one or more microphones ll located in the balcony of thetheater, and other microphones I! located close to the stage and therefore close to the orchestra, it musicians are employed to render music, in additiontothatrenderedbythesoundandpicture reproduction apparatus.

Amplifier I amplifies the sounds picked up by microphones II, II and l2,and'switch 9 alsocontrols the circuit which places speakers I in circuits with the microphones II, II and I2 and the amplifier I, so that '-by in the thoroughfare, at which the theater is located, will hearnot only the sound waves which are being reproduced by the sound reproducer, but also the sound waves from the applauding audience, and renditions of the orchestra, ii the orchestra is playing, or words spoken or sung from the stage. and be thereby influenced to attend the performance.

Itwillbeunderstoodoicoursethattheiliushation oi. the drawing is merely representative of one possible arrangement oi microphones and amplilying or loud speaker units and that numerous other arrangements may be employ without departing from the spirit of the invention As previously stated, where an apparatus is employed by a chain of theaters, or where any 01' the principles of the invention may otherwise find embodiment, microphonic and amplifying units may be arranged at the diflerent theaters and electrically coupled in such a manner as to permit trion from one theater to another.

What I claim is:-

I. In combination, a theater having a sound and picture reproduction apparatus located therein,loudspeakerunitslocated exteriorly ol'the theater, microphones located within the theater, an amplifier tor the microphones, a control switch inthetheatenanelectricalcircuitbetwemthe loud speaker units and the sound and picturereproduction apparatus and controlled by the switch, and an electrical circuit between the loud speakerunitsandtheandtheamplifier therefor and controlled by said switch whereby either music and applause within the theater or movietones from the sound reproduction apparatus may be transmitted exteriorly or the theater.

2. A theater having a sound and picture reproduction apparatus located therein, loud units located exteriorly of the theater, microphones located within the theater, an forthemicrophomacontrolswitchinthe theater, an electric circuit between the loud speaker units and the sound and picture apparatus, and controlled by the switch, and an electric circuit between the loud unit and the microphones and the amplifier therefor and controlled by said switch.

3. A sound reproducing apparatus for advertisins purposes comprising loud arranged exteriorly 01' a theater, and a sound and moving pi u r pr du ins apparatus. and anamplifieriorsaidlocated within the theater, means electrically said microphones and amplifier to said loud and means electrically connecting said sound rcproducing apparatus and said loud speakers, said microphones being positioned to receive sound from said apparatus, and a control switch associated withboth oi'said meanswherebysaidloud speakersmaybe placedeitherin circuitwithsaid 4. In apparatus for continuing whole or partial cycles of the sound vibrations produced within a theatre to onlisteners exteriorly of the theatre for the purpose of inducing the onlisteners to become patrons oi the theatre comprising the sound reproducing apparatus, aloud speaker arranged exteriorly of a theatre, microphones and an ampliher for said microphones located within the theatre, wiring connecting the microphones and amplifier to said loud speaker, other wiring connecting said sound reproducing apparatus to said loud speaker, and a control switch associated with both branches or said wiring whereby the loud speaker exteriorly oi the theatre may be placed directly in circuit with the sound reproducing apparatus oi the moving pictures or indirectiytherewiththruthemediumotthemicrophones and amplifier within the theatre.

5. In combination, a theatre having a sound reproduction apparatus therein, including electrical loud speakers for giving oi! the sound vibrations produced thereby, a sign located exteriorly of the theatre, electrical loud speakers located exterlorly of the theatre adjacent said sign,microphonespositionedinthetheatreto receive the sound produced by the audience together with the sound vibrations emanating tom the first mentioned loud speakers, an amplifier for said microphones, wiring iorming a circuit which includes said microphones, amplifier and last mentioned loud speakers, and means for selectiveiy connecting the exterior loud to the sound reproduction apparatus and the 6.Inanapparatusoi!thekinddescribed,an electrical loud speaker arranged exteriorly or the interior at a building, microphones and an ampliher for said microphones located within the building, a soimd reproducing apparatus, wiring connecting said solmd reproducing to said other wiring connecting the microphones and amplifier in series with the speaker, and meansted with both of said wirings wlnreby the loud speaker exterlorly oi the building may be placed selectively directly in' circuit with the sound apparatus and indirectlytherewiththrough-themediumot themiand amplifier within the interior.

7. A sound reproducing apparatus for advertising comprising electrical loud speakersarrangedexteriorlyotatheatre,otherelectrical loud arranged within said theatre, a sound reproducer including an amplifier in said theatre, means to provide all of said loud speakers simultaneously with the same sound vibrations givenoitbysaidsoundreproducensaidmeans otatwopartelectriccircuihonepart including said soimd reproducer and interior loud and the other including said exterior loud. es located in the acoustical shadow oi the loud in the theatre andanamplifierforsaid; and'a switch common to the two part circuit.

eircuitbetweenthe loudspeakerandthesoumd reproduction apparatus, a second electrical loud speaker-incircuitwithsaidsoimdreproduetion apparatmintheaeousisal w oi'saidsecondloudspeaker,anelectrical circuit betweensaidiirstloudspeakerandmi fl sanampliiienandaswitchcam" races mon to both of said circuits for controlling the circuit from said sound reproducing apparatus to the first said loud speaker and from the microphones to the first said loud speaker,

9. A sound reproducing apparatus for advertising purposes comprising electrical loud speakers arranged exteriorly of a theatre, microphones and an amplifier located within the theatre, means electrically connecting the microphones and amplifier and in turn the amplifier and the loud speakers, a sound reproducing apparatus, means electrically connecting the loud speakers and sound reproducing apparatus, and a control switchassociatedwithbothotsaidmeans toplace the loud speakers exteriorly of the theatre in circuit selectively with said sound reproducing multaneously with the same sound vibrations and including means selectively connecting the exterior loud speakers directly and indirectly with the sound reproducing apparatus.

FERDINAND G. SALCEDO. 

